I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you write down eight eights so that they add up to one thousand?

Can you find out the total number of triangles in the given figure?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

1. Where does Easter come from before Valentine's Day?

2. Do you know what is in the middle of Valentine's?

3. What did the lady bee say to the man bee on the occasion of Valentine's Day

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?